设计了一款医院病房呼叫系统，预设了八个房间按钮，可以按照具体情况设置按钮的个数，当按钮按下的时候医务室会听到病人呼叫信息。-Designed a hospital ward call system, room eight preset buttons , you can set the number of buttons according to specific circumstances , when the button is pressed when the clinic will he